It's only been a year, but the honeymoon is over for Amber Rose and Wiz Khalifa and she wants a divorce.

Court documents show Amber Rose filed on Monday citing irreconcilable differences and that she is gunning for full legal and physical custody of their one-year-old son Sebastian. Though is willing to give Wiz visitation.

Amber also admits that there is a pre-nup and she says it is valid, so presumably she won't be fighting that.

Though there has been no word for either Amber or Wiz on what caused the split, TMZ has sources that say Rose has been spotted with the newly single Nick Cannon recently and a romance might have sparked up there.